Product Handbook 2026 - Volume 2

Steam traps Swivel connectors and traps

8

Optional extras Integral sensor type SSL1 (steam only) or WLSL1 (for waterlogging) for use with R1C or WLSL1 with DIODE for use with RI6C are available as optional extras, to enable operational monitoring of the steam trap. Please note that the optional Spiratec SSL1 and WLSL1 sensors must not be fitted when the STS17.2 is installed in a vertical application . BDV1 blowdown valve is also available for cleaning the strainer during operation. Care should be taken when using the BDV1 blowdown valve as the discharge may be hot. Please note that a BDV1 cannot be used when a Spiratec sensor has been chosen to be part of the unit. Retrofit double isolation valve and spool piece to convert a single upstream isolation version to double isolation. Insulation jacket is available to reduce heat loss and energy wastage. See separate literature.

Pressure / temperature limits

Pressure psi g

0

145

290

435

580

446 392 302 212 122

A

B

Steam saturation curve

32 14

D

C

Pressure bar g

The product must not be used in this region. A - B Screwed, socket weld, butt weld and flanged ANSI 300.

A - C Flanged EN 1092 PN40. A - D Flanged ASME Class 150.

Body design conditions

PN40

PMA Maximum allowable pressure

40 bar g @ 120 °C

580 psi g @ 248 °F

TMA Maximum allowable temperature

230 °C @ 10 bar g

446 °F @ 145 psi g

Minimum allowable temperature

-10 °C

14 °F

ANSI 150

11.3 bar g

164 psi g

Maximum operating pressure for saturated steam service

PMO

8.9 99

All other connections

17.5 bar g

254 psi g

TMO Maximum operating temperature

230 °C @ 10 bar g

446 °F @ 145 psi g

Minimum operating temperature

-10 °C

14 °F

Note: For lower operating temperatures consult Spirax Sarco Product is safe for use under full vacuum conditions Designed for a maximum cold hydraulic test pressure of:

60 bar g

870 psi g

TI-P128-22 CMGT Issue 14

Page 5 of 15

STS17.2 Stainless Steel Compact Pipeline Connector Steam Trapping Station

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